On Friday, 7 August 2015 18:25:05 UTC+1, Stephen Davenport wrote:

Your smart, so I don't understand why this is so difficult.

Stephen.

Because I was not smart enough to realise Dawlish thinks that because a cold body radiaties blackbody radiation it will warm an adjacent body. That is just unbelievable - wouldn't you agree? Surely even a fool like him can't think that.